Since we get more and more Onbefore and onAfters in webservices and BPT I would like to see the same thing implemented in screens/webblocks.
I am not sure if TrueChange can handle this, but there are some advantages imho
- OnBefore can do some basic checks, common validations
- OnAfter can do the refreshQuery and refresh-action
this will result in cleaner and more maintainable code.